When using a SourceProvider to add data for a picker and an item has an empty string (so that the validation forces the user to pick an option) the empty picker option shows '0' initially until there is user interaction and then empties.
if (sourceName == "PickerControl")
{
list.Add("");
list.Add("Item1");
list.Add("Item2");
list.Add("Item3");
}
This also happens when loading complex type property values into the picker.
I've attached a clip of this happening in an emulator.
Attachment:
picker_fba99ee2.7z